1. Satellite Aerosol Validation Pawan Gupta NASA ARSET- AQ – GEPD & SESARM, Atlanta, GA September 1-3, 2015

2. http://darktarget.gsfc.nasa.gov/

3. Spatial and Temporal Collocation

4. MODIS Dark Target AOD Uncertainties

5. Preliminary Validation Results of Collection 6

6. Validation Maps

7. Scatter Plot

8. Other Online Tools

9. MAPSS Giovanni instances Used to evaluate the quality of a satellite retrievals MAPSS allows you to compare AERONET data with coincident satellite data. Quick and effective way to evaluate the quality of the satellite retrieval at particular locations for a range of dates or season. Data from MODIS, MISR. http://giovanni.gsfc.nasa.gov/mapss/ http://giovanni.gsfc.nasa.gov/mapss_explorer/ Multi-sensor Aerosol Products Sampling System (MAPSS) Multi-sensor statistics Satellite – AERONET Inter-comparison

11. http://giovanni.gsfc.nasa.gov/mapss_explorer/ MAPSS Statistical Explorer

12. Petrenko, M., and C. M. Ichoku. 2013. "Coherent uncertainty analysis of aerosol measurements from multiple satellite sensors." Atmos. Chem. Phys., 13 (14): 6777-6805 [10.5194/acp-13- 6777-2013] [Journal Article/Letter] Petrenko, M., C. M. Ichoku, and G. Leptoukh. 2012. "Multi-sensor Aerosol Products Sampling System (MAPSS)." Atmospheric Measurement Techniques, 5 (5): 913-926 [10.5194/amt-5-913- 2012] [Journal Article/Letter]

13. Some Published Validation Papers Levy, R. C., Mattoo, S., Munchak, L. A., Remer, L. A., Sayer, A. M., Patadia, F., & Hsu, N. C.. (2013). The Collection 6 MODIS aerosol products over land and ocean. Atmospheric Measurement Techniques, 6, 2989–3034. doi:10.5194/amt-6-2989-2013 Remer, L. A., Mattoo, S., Levy, R. C., & Munchak, L. A.. (2013). MODIS 3 km aerosol product: algorithm and global perspective. Atmospheric Measurement Techniques, 6, 1829–1844. doi:10.5194/amt-6-1829-2013 Sayer, A. M., N.-Y. C. Hsu, C. Bettenhausen, and M.-J. Jeong. 2013. "Validation and uncertainty estimates for MODIS Collection 6 “Deep Blue” aerosol data." J. Geophys. Res. Atmos., 118 (14): 7864-7872 [10.1002/jgrd.50600 Sayer, A. M., L. A. Munchak, N.-Y. C. Hsu, et al. 2014. "MODIS Collection 6 aerosol products: Comparison between Aqua's e-Deep Blue, Dark Target, and “merged” data sets, and usage recommendations." J. Geophys. Res.-Atmos, 119 (24): 13,965-13,989 [10.1002.2014JD022453]